166044151 has 32 divisors (see below), whose sum is σ = 217945728. Its totient is φ = 122757120.

The previous prime is 166044149. The next prime is 166044161. The reversal of 166044151 is 151440661.

It is a cyclic number.

It is not a de Polignac number, because 166044151 - 2¹ = 166044149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166044161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 279711 + ... + 280303.

It is an arithmetic number, because the mean of its divisors is an integer number (6810804).

Almost surely, 2^166044151 is an apocalyptic number.

166044151 is a deficient number, since it is larger than the sum of its proper divisors (51901577).

166044151 is a wasteful number, since it uses less digits than its factorization.

166044151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 811.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 166044151 is about 12885.8120039057. The cubic root of 166044151 is about 549.6351861724.

It can be divided in two parts, 16604 and 4151, that multiplied together give a square (68923204 = 8302²).

The spelling of 166044151 in words is "one hundred sixty-six million, forty-four thousand, one hundred fifty-one".